M r k industries offers high quality ss screwed fittings ranging from 1/8" to 4". These fittings are manufactured through investment casting process and machined through special purpose machines for inside threading and cnc for outside threads. All the castings are solution annealed and passivated prior to threading. All the fittings are 100 per cent air tested in water. The company`s higher level of inspection standards assures fittings of exacting tolerances. These fittings are also available in socket weld type as per the customer requirements. The material of construction is of ss 304, 316 and 316l.